[jira] [Commented] (HBASE-3886) HServerInfo (and ServerName) equate the same if the hostname and port are same even if IP has changed

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-3886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448207#comment-13448207 ] 

Lars Hofhansl commented on HBASE-3886:
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@Stack: Are you planning to work on this? Should we keep it open?
                
> HServerInfo (and ServerName) equate the same if the hostname and port are same even if IP has changed
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-3886
>                 URL: https://issues.apache.org/jira/browse/HBASE-3886
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: stack
>
> This is an interesting one.  HServerInfo is deprecated in TRUNK and replaced effectively by a new class ServerName.  Both equate instances of HSI or SN if the two instances have the same hostname and port.  Well, thats well and good but what if we are getting signals from a server whose IP has changed?  In this case, we'll see the server in its new location come in but we'll treat it as though we'd seen it already, thought its IP had changed.  We don't want this.
> This facility is needed for rare case where a server is moved from one IP to another.

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